john mayer and katy perry. >> they both came with some baggage. not that i didn't with frank, let's be honest. or frank with me. sometimes, it can last which makes it harder. he has a long list of very public breakups with ladies. >> and he talks about that. >> and she had a very public breakup with russell brand. they did a duet of songs together called "who you love." let's listen. ♪ who you love who you love >> feel a little vibe to it. ♪ who you love ♪ ♪ who you love >> so far, i love the lyrics. ♪ who you love who you love >> it's who you love? in case you're forgetting, it's who you love. we take a portion of it, and it's not fair. >> that was a good song. >>> by the way, you guys, if you were watching the cmas last night, there's some kind of a christmas special. >> they're on every night now. i can't keep track. >> i can't believe it's already december. i'm panicking a little. >> you should. >> luke bryan was going to send a duet with a member of "duck dynasty" willie robinson. let's listen. >> oh, dear. ♪ red neck family and w